I am working on BOI 2012 Brackets. The official editorial uses DP to solve the problem, but I noticed that for any length $$$N$$$ strings of the form (((((....(((((, the answer is $$$C(N-2)$$$. Is there any way to generalize this observation to a solution to the problem using Catalan numbers?
→ Pay attention
→ Streams
→ Top rated
| # | User | Rating |
|---|---|---|
| 1 | tourist | 3985 |
| 2 | jiangly | 3814 |
| 3 | jqdai0815 | 3682 |
| 4 | Benq | 3529 |
| 5 | orzdevinwang | 3526 |
| 6 | ksun48 | 3517 |
| 7 | Radewoosh | 3410 |
| 8 | hos.lyric | 3399 |
| 9 | ecnerwala | 3392 |
| 9 | Um_nik | 3392 |
→ Top contributors
| # | User | Contrib. |
|---|---|---|
| 1 | cry | 169 |
| 2 | maomao90 | 162 |
| 2 | Um_nik | 162 |
| 4 | atcoder_official | 161 |
| 5 | djm03178 | 158 |
| 6 | -is-this-fft- | 157 |
| 7 | adamant | 155 |
| 8 | awoo | 154 |
| 8 | Dominater069 | 154 |
| 10 | luogu_official | 150 |
→ Find user
→ Recent actions
Solve BOI Brackets using Catalan Numbers?
Revision en1, by whatthemomooofun1729, 2024-07-16 05:37:40
History
Revisions
| Rev. | Lang. | By | When | Δ | Comment | |
|---|---|---|---|---|---|---|
| en1 |
|
whatthemomooofun1729 | 2024-07-16 05:37:40 | 416 | Initial revision (published) |
Codeforces (c) Copyright 2010-2024 Mike Mirzayanov
The only programming contests Web 2.0 platform
Server time: Dec/22/2024 17:36:45 (i1).
Desktop version, switch to mobile version.
Supported by
